Enhancement in BER Performance by Adaptive Sector Antennas in CDMA Wireless Multi-media Communications 


Vol. 27,  No. 10, pp. 980-989, Oct.  2002


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  Abstract

In this paper, we have proposed the sectorization method of the adaptive sector antenna and the new receiver structure for the CDMA wireless multi-media communication which uses multi-code and single-code.
The sectorization and average BER performance of the adaptive sector antenna, which employs the proposed sectorization method, are abtained through simulation. The simulation results have shown that the sizes of sectors are properly controlled according to the distribution of the load and that the BER performance of the adaptive sector antenna is enhanced much more than that of the fixed sector antenna.
Also, we have proposed two receivers, which are different from the positions to detect multi-code signals, for the multi-media communication. Each receiver has a simple cancellation scheme and two adaptive sector antennas, which are called the lst adaptive sector antenna and the 2nd adaptive sector antenna, respectively. In this paper, the average BER performances of the receivers are compared through simulation. As the results of the simulation, wehave recognized that all users' BER performances are greatly dependent on the positions to detect the multi-code signals. When we consider both system complexity and target BERs of signals, we have concluded that the receiver, which detects multi-code signals in the lst and the 2nd adaptive sector antenna, is appropriate for the CDMA wireless multi-media communication systems.

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  Cite this article

[IEEE Style]

L. J. Hyung, K. Y. Chul, O. C. Heon, C. S. Joon, "Enhancement in BER Performance by Adaptive Sector Antennas in CDMA Wireless Multi-media Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 10, pp. 980-989, 2002. DOI: .

[ACM Style]

Lee Ju Hyung, Kim Young Chul, Oh Chang Heon, and Cho Sung Joon. 2002. Enhancement in BER Performance by Adaptive Sector Antennas in CDMA Wireless Multi-media Communications. The Journal of Korean Institute of Communications and Information Sciences, 27, 10, (2002), 980-989. DOI: .

[KICS Style]

Lee Ju Hyung, Kim Young Chul, Oh Chang Heon, Cho Sung Joon, "Enhancement in BER Performance by Adaptive Sector Antennas in CDMA Wireless Multi-media Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 10, pp. 980-989, 10. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880